Apg7p/Cvt2p: A novel protein-activating enzyme essential for autophagy.

abstract：:Vascular endothelial cells are important in a variety of physiological and pathophysiological processes. The growth and functions of vascular endothelial cells are regulated both by soluble mitogenic and differentiation factors and by interactions with the extracellular matrix; however, relatively little is known abou...

journal_title：Molecular biology of the cell

authors： Short SM,Talbott GA,Juliano RL

更新日期：1998-08-01 00:00:00

abstract：:Tetraploidization, or genome doubling, is a prominent event in tumorigenesis, primarily because cell division in polyploid cells is error-prone and produces aneuploid cells. This study investigates changes in gene expression evoked in acute and adapted tetraploid cells and their effect on cell-cycle progression. Acute...

journal_title：Molecular biology of the cell

authors： Potapova TA,Seidel CW,Box AC,Rancati G,Li R

更新日期：2016-10-15 00:00:00

abstract：:Syntaxin 3 (Stx3), a SNARE protein located and functioning at the apical plasma membrane of epithelial cells, is required for epithelial polarity. A fraction of Stx3 is localized to late endosomes/lysosomes, although how it traffics there and its function in these organelles is unknown. Here we report that Stx3 underg...

journal_title：Molecular biology of the cell

authors： Giovannone AJ,Reales E,Bhattaram P,Fraile-Ramos A,Weimbs T

更新日期：2017-10-15 00:00:00

abstract：:Type I interferons (IFN-alpha/beta) induce apoptosis in certain tumor cell lines but not others. Here we describe a mutation in STAT2 that confers an apoptotic effect in tumor cells in response to type I IFNs. This mutation was introduced in a conserved motif, PYTK, located in the STAT SH2 domain, which is shared by S...

journal_title：Molecular biology of the cell

authors： Scarzello AJ,Romero-Weaver AL,Maher SG,Veenstra TD,Zhou M,Qin A,Donnelly RP,Sheikh F,Gamero AM

更新日期：2007-07-01 00:00:00

abstract：:Ca(2+) is absorbed across intestinal epithelial monolayers via transcellular and paracellular pathways, and an active form of vitamin D(3), 1alpha,25-dihydroxyvitamin D(3) [1alpha,25(OH)(2)D(3)], is known to promote intestinal Ca(2+) absorption. However, the molecules driving the paracellular Ca(2+) absorption and its...

journal_title：Molecular biology of the cell

authors： Fujita H,Sugimoto K,Inatomi S,Maeda T,Osanai M,Uchiyama Y,Yamamoto Y,Wada T,Kojima T,Yokozaki H,Yamashita T,Kato S,Sawada N,Chiba H

更新日期：2008-05-01 00:00:00

abstract：:This essay records a voyage of discovery from the "cradle of cell biology" to the present, focused on the biology of the oldest known cell organelle, the cilium. In the "romper room" of cilia and microtubule (MT) biology, the sliding MT hypothesis of ciliary motility was born. From the "summer of love," students and c...

journal_title：Molecular biology of the cell

authors： Satir P

更新日期：2014-11-01 00:00:00

abstract：:The mitotic exit network (MEN) is an essential GTPase signaling pathway that triggers exit from mitosis in budding yeast. We show here that during meiosis, the MEN is dispensable for exit from meiosis I but contributes to the timely exit from meiosis II. Consistent with a role for the MEN during meiosis II, we find th...

journal_title：Molecular biology of the cell

authors： Attner MA,Amon A

更新日期：2012-08-01 00:00:00

abstract：:Mitogen-activated protein kinase phosphatase 2 (MKP2) is a member of the dual-specificity MKPs that regulate MAP kinase signaling. However, MKP2 functions are still largely unknown. In this study, we showed that MKP2 could regulate histone H3 phosphorylation under oxidative stress conditions. We found that MKP2 inhibi...

journal_title：Molecular biology of the cell

authors： Jeong MW,Kang TH,Kim W,Choi YH,Kim KT

更新日期：2013-02-01 00:00:00

abstract：:A novel selection scheme has been developed to isolate bloodstream forms of Trypanosoma brucei, which are defective in their ability to differentiate to the procyclic stage. Detailed characterization of one selected cell line (defective in differentiation clone 1 [DiD-1]) has demonstrated that these cells are indistin...

journal_title：Molecular biology of the cell

authors： Tasker M,Wilson J,Sarkar M,Hendriks E,Matthews K

更新日期：2000-05-01 00:00:00

abstract：:Keratins are cytoplasmic intermediate filament proteins preferentially expressed by epithelial tissues in a site-specific and differentiation-dependent manner. The complex network of keratin filaments in stratified epithelia is tightly regulated during squamous cell differentiation. Keratin 14 (K14) is expressed in mi...

journal_title：Molecular biology of the cell

authors： Alam H,Sehgal L,Kundu ST,Dalal SN,Vaidya MM

更新日期：2011-11-01 00:00:00

abstract：:The fission yeast Mcs6-Mcs2-Pmh1 complex, homologous to metazoan Cdk7-cyclin H-Mat1, has dual functions in cell division and transcription: as a partially redundant cyclin-dependent kinase (CDK)-activating kinase (CAK) that phosphorylates the major cell cycle CDK, Cdc2, on Thr-167; and as the RNA polymerase (Pol) II c...

journal_title：Molecular biology of the cell

authors： Lee KM,Miklos I,Du H,Watt S,Szilagyi Z,Saiz JE,Madabhushi R,Penkett CJ,Sipiczki M,Bähler J,Fisher RP

更新日期：2005-06-01 00:00:00

abstract：:The Lec35 gene product (Lec35p) is required for utilization of the mannose donor mannose-P-dolichol (MPD) in synthesis of both lipid-linked oligosaccharides (LLOs) and glycosylphosphatidylinositols, which are important for functions such as protein folding and membrane anchoring, respectively. The hamster Lec35 gene i...

journal_title：Molecular biology of the cell

authors： Anand M,Rush JS,Ray S,Doucey MA,Weik J,Ware FE,Hofsteenge J,Waechter CJ,Lehrman MA

更新日期：2001-02-01 00:00:00

abstract：:Cell adhesion to extracellular matrix molecules such as fibronectin involves complex transmembrane signaling processes. Attachment and spreading of primary fibroblasts can be promoted by interactions of cell surface integrins with RGD-containing fragments of fibronectin, but the further process of focal adhesion and s...

journal_title：Molecular biology of the cell

authors： Woods A,McCarthy JB,Furcht LT,Couchman JR

更新日期：1993-06-01 00:00:00

abstract：:The nuclear envelope of metazoans disassembles during mitosis and reforms in late anaphase after sister chromatids have well separated. The coordination of these mitotic events is important for genome stability, yet the temporal control of nuclear envelope reassembly is unknown. Although the steps of nuclear formation...

journal_title：Molecular biology of the cell

authors： Tseng LC,Chen RH

更新日期：2011-09-01 00:00:00

abstract：:More than 130 different mutations in the gap junction integral plasma membrane protein connexin32 (Cx32) have been linked to the human peripheral neuropathy X-linked Charcot-Marie-Tooth disease (CMTX). How these various mutants are processed by the cell and the mechanism(s) by which they cause CMTX are unknown. To add...

journal_title：Molecular biology of the cell

authors： VanSlyke JK,Deschenes SM,Musil LS

更新日期：2000-06-01 00:00:00

abstract：:The crystalline lens is an attractive system to study the biology of intercellular communication; however, the identity of the structural components of gap junctions in the lens has been controversial. We have cloned a novel member of the connexin family of gap junction proteins, Cx50, and have shown that it is likely...

journal_title：Molecular biology of the cell

authors： White TW,Bruzzone R,Goodenough DA,Paul DL

更新日期：1992-07-01 00:00:00

abstract：:Tubulogenesis by epithelial cells regulates kidney, lung, and mammary development, whereas that by endothelial cells regulates vascular development. Although functionally dissimilar, the processes necessary for tubulation by epithelial and endothelial cells are very similar. We performed microarray analysis to further...

journal_title：Molecular biology of the cell

authors： Albig AR,Schiemann WP

更新日期：2005-02-01 00:00:00

abstract：:Sm-like (Lsm) proteins function in a variety of RNA-processing events. In yeast, the Lsm2-Lsm8 complex binds and stabilizes the spliceosomal U6 snRNA, whereas the Lsm1-Lsm7 complex functions in mRNA decay. Here we report that a third Lsm complex, consisting of Lsm2-Lsm7 proteins, associates with snR5, a box H/ACA snoR...

journal_title：Molecular biology of the cell

authors： Fernandez CF,Pannone BK,Chen X,Fuchs G,Wolin SL

更新日期：2004-06-01 00:00:00

abstract：:Hyaluronan (HA) in the endothelial glycocalyx serves as a mechanotransducer for high-shear-stress-stimulated endothelial nitric oxide synthase (eNOS) phosphorylation and nitric oxide (NO) production. Low shear stress (LSS) has been shown to contribute to endothelial inflammation and atherosclerosis by impairing the ba...

journal_title：Molecular biology of the cell

authors： Kong X,Chen L,Ye P,Wang Z,Zhang J,Ye F,Chen S

更新日期：2016-12-15 00:00:00

abstract：:The assembly of metazoan Sm-class small nuclear ribonucleoproteins (snRNPs) is an elaborate, step-wise process that takes place in multiple subcellular compartments. The initial steps, including formation of the core RNP, are mediated by the survival motor neuron (SMN) protein complex. Loss-of-function mutations in hu...

journal_title：Molecular biology of the cell

authors： Shpargel KB,Praveen K,Rajendra TK,Matera AG

更新日期：2009-01-01 00:00:00

abstract：:When proliferating fission yeast cells are exposed to nitrogen starvation, they initiate conjugation and differentiate into ascospores. Cell cycle arrest in the G1-phase is one of the prerequisites for cell differentiation, because conjugation occurs only in the pre-Start G1-phase. The role of ste9(+) in the cell cycl...

journal_title：Molecular biology of the cell

authors： Kitamura K,Maekawa H,Shimoda C

更新日期：1998-05-01 00:00:00

abstract：:Polypeptides targeted to the yeast endoplasmic reticulum (ER) posttranslationally are thought to be kept in the cytoplasm in an unfolded state by Hsp70 chaperones before translocation. We show here that Escherichia coli beta-lactamase associated with Hsp70, but adopted a native-like conformation before translocation i...

journal_title：Molecular biology of the cell

authors： Paunola E,Suntio T,Jämsä E,Makarow M

更新日期：1998-04-01 00:00:00

abstract：:Myoblast C2C12 cells cultured in the presence of FGF2 actively proliferate and showed a differentiation-defective phenotype compared with cells cultured in low serum or in the presence of insulin. These FGF2 effects are associated with sustained activation of p44/p42-MAPK and lack of activation of AKT. Here we demonst...

journal_title：Molecular biology of the cell

authors： de Alvaro C,Martinez N,Rojas JM,Lorenzo M

更新日期：2005-09-01 00:00:00

abstract：:Septins are conserved GTP-binding cytoskeletal proteins that polymerize into filaments by end-to-end joining of hetero-oligomeric complexes. In human cells, both hexamers and octamers exist, and crystallography studies predicted the order of the hexamers to be SEPT7-SEPT6-SEPT2-SEPT2-SEPT6-SEPT7, while octamers are th...

journal_title：Molecular biology of the cell

authors： Soroor F,Kim MS,Palander O,Balachandran Y,Collins RF,Benlekbir S,Rubinstein JL,Trimble WS

更新日期：2021-02-01 00:00:00

abstract：:The cation-dependent mannose 6-phosphate receptor (CD-MPR) mediates the transport of lysosomal enzymes from the trans-Golgi network to endosomes. Evasion of lysosomal degradation of the CD-MPR requires reversible palmitoylation of a cysteine residue in its cytoplasmic tail. Because palmitoylation is reversible and ess...

journal_title：Molecular biology of the cell

authors： Stöckli J,Rohrer J

更新日期：2004-06-01 00:00:00

abstract：:The key molecular regulatory mechanisms that govern and coordinate the molecular alterations that underpin the process of human labor remain incompletely understood although enhanced intrauterine prostaglandin production is known to be requisite. Studies from cancer tissues have indicated that at least one key enzyme ...

journal_title：Molecular biology of the cell

authors： Mitchell MD

更新日期：2006-01-01 00:00:00

abstract：:Focal adhesion kinase (FAK) is a cytoplasmic tyrosine kinase protein localized to regions called focal adhesions, which are contact points between cells and the extracellular matrix. FAK protein acts as a scaffold to transfer adhesion-dependent and growth factor signals into the cell. Increased FAK expression is linke...

journal_title：Molecular biology of the cell

authors： Fonar Y,Gutkovich YE,Root H,Malyarova A,Aamar E,Golubovskaya VM,Elias S,Elkouby YM,Frank D

更新日期：2011-07-01 00:00:00

abstract：:Here we demonstrate that multiple tetraspanin (transmembrane 4 superfamily) proteins are palmitoylated, in either the Golgi or a post-Golgi compartment. Using CD151 as a model tetraspanin, we identified and mutated intracellular N-terminal and C-terminal cysteine palmitoylation sites. Simultaneous mutations of C11, C1...

journal_title：Molecular biology of the cell

authors： Yang X,Claas C,Kraeft SK,Chen LB,Wang Z,Kreidberg JA,Hemler ME

更新日期：2002-03-01 00:00:00

abstract：:In pancreatic β-cells, glutamate dehydrogenase (GDH) modulates insulin secretion, although its function regarding specific secretagogues is unclear. This study investigated the role of GDH using a β-cell-specific GDH knockout mouse model, called βGlud1(-/-). The absence of GDH in islets isolated from βGlud1(-/-) mice ...

journal_title：Molecular biology of the cell

authors： Vetterli L,Carobbio S,Pournourmohammadi S,Martin-Del-Rio R,Skytt DM,Waagepetersen HS,Tamarit-Rodriguez J,Maechler P

更新日期：2012-10-01 00:00:00

abstract：:Wee1 inactivates the Cdc2-cyclin B complex during interphase by phosphorylating Cdc2 on Tyr-15. The activity of Wee1 is highly regulated during the cell cycle. In frog egg extracts, it has been established previously that Xenopus Wee1 (Xwee1) is present in a hypophosphorylated, active form during interphase and underg...

journal_title：Molecular biology of the cell

authors： Lee J,Kumagai A,Dunphy WG

更新日期：2001-03-01 00:00:00